Title :
Design of direct-driven permanent magnet synchronous motors for an electric sports car
Author :
Nerg, J. ; Rilla, M. ; Ruuskanen, V. ; Pyrhönen, J. ; Ruotsalainen, S.
Author_Institution :
LUT-Energy, Lappeenranta Univ. of Technol., Lappeenranta, Finland
Abstract :
A design process of a direct driven permanent magnet synchronous machine (PMSM) for a full electric sports car is presented. The rotor structure of the machine consists of two permanent magnet layers embedded inside the rotor laminations thus resulting in some inverse saliency. An integer slot stator winding was selected to clearly take advantage of the additional reluctance torque. The performance characteristics of the designed PMSM were calculated utilizing two-dimensional finite element method. Cross-saturation between d- and q-axes was taken into account in the calculation of synchronous inductances. The calculation results are validated with the measurements.
Keywords :
electric vehicles; finite element analysis; inductance measurement; laminations; permanent magnet motors; rotors; stators; synchronous motors; torque; PMSM design; direct driven permanent magnet synchronous machine; direct driven permanent magnet synchronous motor design; full electric sports car; integer slot stator winding; inverse saliency; performance characteristics; permanent magnet layers; reluctance torque; rotor laminations; rotor structure; synchronous inductance calculation; two-dimensional finite element method; Inductance; Magnetic flux; Rotors; Stator windings; Temperature measurement; Torque; Analysis; PM synchronous machine; design; electric propulsion; electric vehicle; finite element analysis; internal permanent magnet (PM) motor;
Conference_Titel :
Electrical Machines (ICEM), 2012 XXth International Conference on
Conference_Location :
Marseille
Print_ISBN :
978-1-4673-0143-5
Electronic_ISBN :
978-1-4673-0141-1
DOI :
10.1109/ICElMach.2012.6349860
